Activities/Abacus: Difference between revisions

Line 158: Line 158:


<gallery>
<gallery>
File:Abacus-fractions.png|1/2 + 1/3 + 2/12 = 1
File:Abacus-fractions.png|20 + 1 + 1/2 + 1/3 + 1/6 = 22
</gallery>
</gallery>